OASIS Energy Market Information Exchange (eMIX) TC

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OASIS-emix@ConnectedCommunity.org

Contacts

Chair: William Cox
wtcox@coxsoftwarearchitects.com

OASIS Staff Contact: Kelly Cullinane
kelly.cullinane@oasis-open.org

Charter

The charter for the OASIS Energy Market Information Exchange Technical Committee is posted to http://www.oasis-open.org/committees/emix/charter.php, and can be found in the original Call for Participation.
Statements regarding IPR related to the work of this TC will be posted to http://www.oasis-open.org/committees/emix/ipr.php.

Description

Exchanging price information and product definitions in energy markets and to those following markets

Group Notes

Table of Contents





Announcements

Energy Market Information
Exchange (EMIX) Version 1.0
is now complete and published in the OASIS archives. All license rights as defined in the specification are now available to developers and other users of the work product. The Acrobat PDF form is authoritative for the specification; the schemas and WSDL files are authoritative for machine-readable artifacts.

This work product is included in the Smart Grid Interoperability Panel Catalog of Standards after Governing Board and Membership acceptance. See their EMIX-specific page for more information.

Implementation work is in progress, including by members of the OpenADR Alliance and TeMIX Inc. In addition, two open source projects implementing Energy Interoperation 1.0 and/or profiles that use the EMIX information model are starting up.

We strongly encourage feedback
from users, developers and others, whether OASIS members or not, for the sake
of improving the interoperability and quality of OASIS work. All previously submitted comments (for this work as well as other works of the TC) are publicly
archived and can be viewed in the Energy Market Information Exchange Issue Tracker archive. Submitted comments
(for this work as well as other works of that TC) are publicly archived and can be viewed
at http://lists.oasis-
open.org/archives/emix-comment/
.

Energy markets and sales have
been characterized by tariffs and embedded knowledge that make decision automation
difficult. Smart grids introduce rapidly changing products and product availability, with
associated dynamic prices. Lack of standardized messages conveying a standardized
vocabulary for market information has been a barrier to development and deployment of
technology to respond to changing market circumstances.

Price and product definition are actionable information. When presented with
standard messages conveying price and product, automated systems can make decisions
to optimize energy and economic results. In regulated electricity markets, price and
products often are defined by complex tariffs, derived through political processes. EMIX
defines the information for use in messages that convey this actionable information. An
essential distinction between energy and other markets is that price is strongly influenced
by time of delivery. EMIX conveys time and interval by incorporating WS-Calendar into
tenders, contracts, and performance calls.

An essential distinction between energy and other markets is that price is strongly
influenced by time of delivery. Energy for sale at 2:00 AM, when energy use is low, is
not the same price as energy for sale at the same location at 2:00 PM, during the working
day. EMIX conveys time and interval by incorporating WS-Calendar into tenders,
contracts, and performance calls.

Not all market information is available in real time. Present day markets, particularly
wholesale markets, may have deferred charges (e.g. balancing charges) that cannot be
determined at point of sale. Other markets may require additional purchases to allow the
use of the energy purchased (e.g. same-time transmission rights or pipeline fees when
accepting delivery on a forward contract). EMIX is useful for representing available price
and product information.

OASIS and the EMIX TC welcome your comments. To submit comments, click the "Send A
Comment
" link on the EMIX TC home page and follow the instructions to subscribe to
the emix-comment email list, then simply send comments to that list. If you are a
member of the TC, please use the Jira tracking tool to submit comments
instead.

We also call your attention to the OASIS IPR Policy applicable to the work of this
technical committee
. All members of the TC should be familiar with this document,
which may create obligations regarding the disclosure and availability of a member's
patent, copyright, trademark and license rights that read on an approved OASIS
specification. OASIS invites any persons who know of any such claims to disclose these
if they may be essential to the implementation of the above specification, so that notice of
them may be posted to the notice page for this TC's work.

The approach taken by the TC mirrors that taken by the ISO/RTO Council in
developing
information exchange requirements for Demand Response: First the required business
information exchanges are analyzed, then types and inheritance from the relevant
range of shared information models are assigned. The TC has largely completed
the first phase, hence this informal public review.

We welcome interested parties to join the TC as it continues to develop its
specifications. Participation in the eMIX TC is open to all interested parties, including:
energy market participants (retail, wholesale, curtailment, forward and futures
trading markets); ISOs and RTOs; aggregators of energy provision; generators;
and providers of Smart devices. Contact join@oasis-open.org or the TC chairs
for more information on joining the TC.

This work was prepared in response the the NIST Smart Grid Roadmap and the
Smart Grid Interoperability Panel (SGIP) Prioirity Action Plan 03 (PAP03) which is now ccompleted. It is based
upon WS-Calendar
for the common communication of time and schedule (PAP04) and is used extensively in
Energy
Interoperation
(PAP09) which is approaching its second Public Review


Overview

The OASIS eMIX TC works to define standards for exchanging energy
characteristics,
availability, and schedules to support the free and effective exchange of information.
Better communication of actionable energy prices will help enable and expand
efficient markets that satisfy the growing demand for lower-carbon, lower-energy
buildings, net zero-energy systems, and supply-demand integration that take
advantage of dynamic pricing. Businesses, homes, electric vehicles and the power
grid will benefit from automated and timely communication of energy price,
characteristics,
quantities, and related information.

eMIX focuses on methods of exchanging market information consistent with the
OASIS Blue
approach, encompassing consistency, transparency, and security.

The eMIX TC works closely with the OASIS
Energy Interoperation TC
and the OASIS
WS-Calendar TC
, which respectively are developing Web services-based
information
and communication models for exchanging dynamic pricing, reliability, and emergency
signals and information on energy market participation (such as bids), load
predictability, and generation, and common schedule information.

For more information on eMIX, see the TC Charter.


Subcommittees

No subcommittees have been formed for this TC.




Technical
Work Produced by the Committee

Energy Market Information
Exchange (EMIX) Version 1.0
is now complete and published in the OASIS archives. See Announcements above for details.


Expository
Work Produced by the Committee



The Technical Commitee's TEMIX White Paper
is available for discussion and comment.

Six Committee Note Drafts; final ballots are planned soon:






External
Resources

The eMIX TC works as part of the
sggrid/bin/view/SmartGrid/PAP03PriceProduct>U.S.
National Institute of Standards and Technology [NIST] Priority Action Plan for
Smart Grid Interoperability and the Priority Action Plan 3 Working
Group
. This work is now facilitated by the SmartGrid Inteorperability Panel in conjunction
with NIST.

The Committee Note Draft Retail Block & Tier Prices using EMIX 1.0 has been extended to a paper in Grid-Interop 2011 titled OASIS Collaborative Energy Standards, Facilities, and ZigBee Smart Energy; a preprint is available at the link. The paper shows how any facility management system that can support block & tier price information and demand response can accept and respond to information for Energy Interoperation 1.0/OpenADR 2 and EMIX.


Mailing Lists
and Comments



emix: the list used by TC members to conduct Committee work.
TC
membership
is required to post. TC members are
automatically subscribed; the public may view archives.



emix-comment: a public mail list for providing input to the OASIS
eMIX TC members. Send a comment or view
href="http://lists.oasis-open.org/archives/emix/">archives.






Additional
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